In this study, we continue our investigations of the shaping of circumstellar
Wolf-Rayet nebulae started in [1]}. We concentrate on
the production of bipolar asymmetries and non-spherical morphologies observed
in the vicinity of some young Wolf-Rayet stars [2]}.
The starting point of this study is the work of [3]},
in which the development of young aspherical Wolf-Rayet nebulae is examined using an
hydrodynamical wind-wind interaction model. Their simulations focus on the particular
scenario of a red supergiant star, with asymmetric stellar wind properties, evolving
to a Wolf-Rayet stage of symmetric stellar wind properties.
In the same spirit, we build a magneto-hydrodynamical toy model for rotating
blue supergiant stars with asymmetric stellar winds and evolving to the Wolf-Rayet
phase. The effects of asymmetries in the blue supergiant wind are investigated
using the recipe of [4]}. We perform near-infrared synthetic
observables of the corresponding bipolar stellar wind nebulae, in order to
discuss their respective emission properties and facilitate qualitative
comparison to observations available in the literature.
